1. Instutite of Graduate Studies, Tokat Gaziosmanpaşa University, Tokat, Turkey
2. Department of Medical Microbiology, Faculty of Medicine, Tokat Gaziosmanpaşa University, Tokat, Turkey
3. Genetic Laboratory, Tokat Gaziosmanpaşa University Training and Research Hospital, Tokat, Turkey
4. Department of Biostatistics, Faculty of Medicine, Tokat Gaziosmanpaşa Universirty, Tokat, Turkey